Sonic Waveform Images file dictionary for ODP Leg 133 - Hole 815A
133-815A_l.gif = Sonic Waveforms Images - Lower Section
133-815A_mid.gif = Sonic Waveforms Images - Middle Section
133-815A_r.gif = Sonic Waveforms Images - Repeat Pass
133-815A_u.gif = Sonic Waveforms Images - Upper Section